The reply, when it finally came, was ________ the negative.

Thebasicunitinthestudyofmorphologyis______.

Thereisagrowingbodyofevidencetosupportthefactthatmostpeoplesufferfromalackofdaydreaming_______anexcessofit.

Lying under the skull, the human brain contains an average of ten billion nerve cells called ______.

Itisnotdecided________theconferencewillbeheld.